Question

In the following sequence, the 1st yerm, the 2nd term and the 3rd term are 1,2 and 3 respectively. For any positive integer n, the (n+3)th term is the sum of the (n+2)th term, the (n+1)th term and the nth term. Find the 9th term of the sequence.
1, 2, 3, 6, 11, .....

Answer 1

are you sure it goes 1,2,3 6 ?

Answer 2

yes, the WorkSheet stated that

Answer 3

ok, I mis-read it.

Answer 4

add the last 3 numbers to get the next number

Answer 5

so next term = 11 + 6 + 3 = 20

Answer 6

next one is 20= 3+ 6+ 11

Answer 7

ohh yes

Answer 8

and then 37?

Answer 9

yes

Answer 10

8th=68?
9th=125?

Answer 11

right

Answer 12

oic